A method and device for identifying and counting the nodding rate of classroom students
A statistical method, a student's technology, applied in character and pattern recognition, calculation, computer parts and other directions, can solve the problems of low statistical accuracy, low efficiency, and inability to realize intelligentization of the nodding rate, so as to improve the monitoring level and data accuracy The effect of high efficiency and broad application prospects
Active Publication Date: 2020-07-31
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology
[0003] In order to solve the problems of low statistical accuracy, low efficiency and inability to achieve intelligence in the nodding rate existing in the prior art, the present invention provides a method and device for identifying and counting the nodding rate of classroom students, which is used for intelligently identifying students in classrooms or classrooms The nod rate, providing decision support for the evaluation of teaching quality
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Embodiment 1
[0033] like figure 1 As shown, a classroom student nodding rate recognition and statistics device, including a power supply module, a single-chip microcomputer, a keyboard module, an image acquisition module, a light acquisition module, an infrared fill light module, an interface module, a lighting alarm module and a host computer. The image acquisition module includes For the first camera and the second camera, the single-chip microcomputer is integrated into the body of the first camera, the input end of the single-chip microcomputer is respectively connected with the keyboard module, the light acquisition module, the first camera and the second camera, and the output end of the single-chip microcomputer is respectively connected with the infrared fill light module, the lighting The alarm module is connected with the host computer, the power supply module is connected with the single-chip microcomputer, the infrared supplementary light module and the light alarm module, and i...
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A device for identifying and counting the nodding rate of classroom students according to the present invention includes a single-chip microcomputer, an image acquisition module, a light acquisition module, an infrared supplementary light module, an interface module, a light alarm module and a host computer, and the image acquisition module includes a first camera and a second camera , the single-chip microcomputer is integrated in the body of the first camera, the input end of the single-chip microcomputer is connected with the light acquisition module, the first camera and the second camera respectively, and the output end of the single-chip microcomputer is connected with the infrared supplementary light module, the light alarm module and the host computer respectively. The classroom student nodding rate identification and statistical method and device provided by the present invention collect face images and video signals of classroom behaviors in real time through two cameras, and perform image recognition and synthesis comparison processing through a single-chip microcomputer to obtain the effective nodding time and its value. The corresponding position coordinates are uploaded to the host computer for remote monitoring, which can improve the level of intelligent monitoring and data accuracy, and can be used as the basis for teaching quality evaluation, which has broad application prospects.
Description
technical field [0001] The invention relates to the technical field of teaching auxiliary equipment, in particular to a method and device for identifying and counting the nodding rate of students in a classroom. Background technique [0002] With the rapid development of computer technology, multimedia teaching assistance systems are more and more widely used in modern teaching, making the original monotonous teaching more diverse and interesting. The degree of interest in knowledge points. Many research institutions and personnel have carried out a lot of research work. The nod rate can largely reflect the degree of interest, understanding and recognition of students in the knowledge taught by teachers. Objectively and quantitatively reflect the overall level of a class. However, most of the statistical methods of classroom nodding rate are based on manual (including classroom teachers, teaching supervisors, etc.) observation and subjective statistics. The statistical proc...
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IPC IPC(8): G06K9/00G06Q50/20
CPCG06Q50/20G06V40/166G06V40/20
Inventor 王兴卞浩瑄郭品文周素萍顾伟朱文镇
Owner NANJING UNIV OF INFORMATION SCI & TECH